Can graphite high-temperature vacuum furnace be used for brazing?

05-23-2025       Author: KJ technology

Graphite high-temperature vacuum furnace can be used for brazing. The following is a specific analysis:

In vacuum brazing applications, graphite as an insulation and heating element material has economic advantages, low maintenance requirements, and continuous improvement in purity, which can now meet the needs of various vacuum brazing processes. A typical brazing case shows that graphite furnace performs well in vacuum brazing of molybdenum alloy and graphite. Through high-temperature treatment at 1700 ℃ -1870 ℃ and high vacuum environment (4.5 × 10 ⁻⁴ Pa to 8 × 10 ⁻⁴ Pa), combined with titanium based active brazing materials, it can achieve an interface bonding rate of over 95% and room temperature shear strength of 18.5-21MPa.

This device generates high temperatures through graphite heating elements, combined with a vacuum environment to suppress oxidation, making it particularly suitable for scenarios with strict requirements for welding quality. For example, in the aerospace field, graphite vacuum furnaces can ensure the strength and airtightness of brazed joints in materials such as titanium alloys and high-temperature alloys; In electronic device manufacturing, its precise temperature control capability (± 1 ℃) can meet the micro level assembly requirements of ceramic and metal composite structures.